How do oil-cooled transformers maintain operating temperature?

Oil-cooled transformers maintain operating temperature through the use of insulating oil, which circulates within the transformer to absorb heat generated by electrical losses. The oil transfers heat to the transformer tank, where it dissipates into the surrounding environment. Additionally, the design often incorporates cooling fins or radiators to enhance heat exchange. This efficient thermal management ensures the transformer operates within safe temperature limits, preventing overheating and prolonging its lifespan.